i'm going to guess you are using 5.0.1CD... Maybe you did a hard drive install as well. I haven't looked at the DVD version but the CD has alot of the things you are talking about stripped... could be to save space for important programs, who knows. get the full source from kernel.org and compile a new kernel... 2.6.18rc1 is out, but stable 2.6.17.4 is a best bet.